Fix repeated items when coordinator is updated

api/api_test.go

@@ -353,6 +353,14 @@ func TestMain(m *testing.M) {
 	// Generate Coordinators and add them to HistoryDB
 	const nCoords = 10
 	commonCoords := test.GenCoordinators(nCoords, commonBlocks)
+	// Update one coordinator to test behaviour when bidder address is repeated
+	updatedCoordBlock := commonCoords[len(commonCoords)-1].EthBlockNum
+	commonCoords = append(commonCoords, common.Coordinator{
+		Bidder:      commonCoords[0].Bidder,
+		Forger:      commonCoords[0].Forger,
+		EthBlockNum: updatedCoordBlock,
+		URL:         commonCoords[0].URL + ".new",
+	})
 	if err := api.h.AddCoordinators(commonCoords); err != nil {
 		panic(err)
 	}
@@ -473,7 +481,7 @@ func TestMain(m *testing.M) {
 	nonBootForger := historydb.CoordinatorAPI{
 		Bidder: commonCoords[0].Bidder,
 		Forger: commonCoords[0].Forger,
-		URL:    commonCoords[0].URL,
+		URL:    commonCoords[0].URL + ".new",
 	}
 	// Slot 4
 	nextForgers[3].Coordinator = nonBootForger
@@ -762,10 +770,16 @@ func getBlockByNum(ethBlockNum int64, blocks []common.Block) common.Block {
 }
 
 func getCoordinatorByBidder(bidder ethCommon.Address, coordinators []historydb.CoordinatorAPI) historydb.CoordinatorAPI {
+	var coordLastUpdate historydb.CoordinatorAPI
+	found := false
 	for _, c := range coordinators {
 		if c.Bidder == bidder {
-			return c
+			coordLastUpdate = c
+			found = true
 		}
 	}
-	panic("coordinator not found")
+	if !found {
+		panic("coordinator not found")
+	}
+	return coordLastUpdate
 }

api/coordinator_test.go

@@ -31,12 +31,27 @@ func (t testCoordinatorsResponse) New() Pendinger { return &testCoordinatorsResp
 func genTestCoordinators(coordinators []common.Coordinator) []historydb.CoordinatorAPI {
 	testCoords := []historydb.CoordinatorAPI{}
 	for i := 0; i < len(coordinators); i++ {
-		testCoords = append(testCoords, historydb.CoordinatorAPI{
-			Bidder:      coordinators[i].Bidder,
-			Forger:      coordinators[i].Forger,
-			EthBlockNum: coordinators[i].EthBlockNum,
-			URL:         coordinators[i].URL,
-		})
+		alreadyRegistered := false
+		for j := 0; j < len(testCoords); j++ {
+			// coordinator already registered
+			if coordinators[i].Bidder == testCoords[j].Bidder {
+				alreadyRegistered = true
+				if coordinators[i].EthBlockNum > testCoords[j].EthBlockNum {
+					// This occurrence is more updated, delete current and append new
+					testCoords = append(testCoords[:j], testCoords[j+1:]...)
+					alreadyRegistered = false
+				}
+				break
+			}
+		}
+		if !alreadyRegistered {
+			testCoords = append(testCoords, historydb.CoordinatorAPI{
+				Bidder:      coordinators[i].Bidder,
+				Forger:      coordinators[i].Forger,
+				EthBlockNum: coordinators[i].EthBlockNum,
+				URL:         coordinators[i].URL,
+			})
+		}
 	}
 	return testCoords
 }

api/slots_test.go

@@ -5,6 +5,7 @@ import (
 	"strconv"
 	"testing"
 
+	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/db/historydb"
 	"github.com/mitchellh/copystructure"
@@ -148,7 +149,12 @@ func TestGetSlots(t *testing.T) {
 	// maxSlotNum & wonByEthereumAddress
 	fetchedSlots = []testSlot{}
 	limit = 1
-	bidderAddr := tc.coordinators[0].Bidder
+	var bidderAddr ethCommon.Address
+	for i := 0; i < len(tc.slots); i++ {
+		if tc.slots[i].WinnerBid != nil {
+			bidderAddr = tc.slots[i].WinnerBid.Bidder
+		}
+	}
 	path = fmt.Sprintf("%s?maxSlotNum=%d&wonByEthereumAddress=%s&limit=%d", endpoint, maxSlotNum, bidderAddr.String(), limit)
 	err = doGoodReqPaginated(path, historydb.OrderAsc, &testSlotsResponse{}, appendIter)
 	assert.NoError(t, err)